US2028382A

US2028382A - Machine for inserting fasteners and forming the heel area of a sole

Info

Publication number: US2028382A
Application number: US690308A
Authority: US
Inventors: Frank B Dopp
Original assignee: PERMA CORP
Current assignee: PERMA Corp
Priority date: 1932-10-24
Filing date: 1933-09-21
Publication date: 1936-01-21
Anticipated expiration: 1953-01-21

Description

Jan.21,1936. P 2,028,382

. MACHINE FOR INSERTING FASTENERS AND FORMING THE HEEL AREA OF A SOLE Original Filed Oct. 24, 1932 5 Sheets-Sheet l INVENTOR.

/ ATTORNEY.

Jan. 21, 1936. DOVPP 7 2,028,382 momma FOR INSERTING msmmms AND FORMING THE HEEL AREA OF A son:

Original ed Oct. 24, 1932 Sheets-Sfieet 2 INVENTOR.

Jan. 21, 1936. F. B. DOPP 2,028,382

MACHINE FOR INSERTING FASTENERS AND FORMING THE HEEL AREA OF A SOLE 3 Sheets-Sheet 3 v INVENTOR." fi /1519 Patented Jan. 21, 1936 PATENT OFFICE MACHINE FOR INSERTING FASTENERS AND FORMING THE HEEL AREA OF A SOLE FrankB. Dopp, St. Louis, Mo., assignor to Perma,

Corporation, a corporation of Illinois Original application October 24, 1932, Serial No.

639,221. Divided and this application September 21, 1933, Serial No. 690,308

7 Claims. (01. 1' '21)' This is a divisional application of an application for patent filed in my name on October 1932, Serial Number 639,221.

This invention relates to the art of manufacturing shoes, and has special reference to a machine for inserting fasteners and. forming the heel area of a sole.

The object of the invention is to apply and permanently secure, in a single operation, a pronged and apertured eared plate to the prepared heel seat of a shoe and simultaneously therewith shaping the heel seat and holding it from spreading while under pressure. 1

As more fully described hereinafter, I attain these and other objects and results by a series of steps, or operations carried out on a machine capable of carrying out all of the operations necessary by a single operator.

The novel machine herein described comprises mechanism for providing a. prepared heel seat with a heel attaching plate under pressure and simultaneously therewith shaping, or preparing the heel seat for the application of a heel thereto while held against spreading.

More specifically, but briefly defined, the machine or apparatus comprises a mechanism including means for securing heel attaching plates to lasted shoes and means for finally shaping the heel seat, and means for gauging the counter to prevent spreading of the counter whileunder pressure.

The various operating parts, by which the several stages in the securing .of heel attaching plates to shoes is accomplished, are simple in construction and operation and the machine has all of its operating parts and mechanisms combined andarr-anged in compact form, the various parts, however, being removable and adjustable so that the machine, as a whole, possesses the widest range of adaptability for securing heel attaching plates to shoes of various shapes and sizes.

The present invention maybe used in connection with the devices disclosed in the pending application of August G. Eichhorn, Serial Number 603,995,filedApril'8, 1932." J

The invention will be more readily understood by 'reference to the accompanying drawings, forming part of this specification.

Fig. 1 is a viewin front elevation of the ma-. chine embodying the features of my invention.

Fig. 2 is a bottom plan view of the heel seat t plate holder and heel seat former. V

Fig. 3 is a view partly in side elevation and partly insectional elevation of the heel seat plate holder and heel seat former showing a heel seat plate applied thereto.

Fig. 4 is a plan view showing a heel attaching plate secured to the heel seat of a shoe.

Fig. 5 is a side view of the machine, the supporting table being shown in sectional elevation. Fig. 6 is a top plan view of the shoe counter and heelseat gauge mounted on a support.

Fig. 7 is a side elevation of the shoe counter and heel seat gauge device mounted on a support.

Fig. 8 is a front elevation of the shoe counter and heel seat. gauge device. 7 To the end that every detail of themethod of securing heel attaching plates to shoes,as practiced with the herein shown machine, may be more certainly understood, the construction and operation of the machine will now be morefully described.

vInthe drawings, B designates, generally, the 7 machine which applies and permanently secures the heel attaching plate to the heel seat of the shoe. H r

The machine, as shown, is positioned on a table D provided with supporting legs E, or, if desired, the machine may be secured to the customary work bench used in shoe factories.

The machine, or apparatus for carrying out the invention is shown in'one form as consisting of a suitable stand embodying a base I, an upright 2 having a laterally directed arm 3 disposed a suitable distance above the base I and a plunger device. The plunger device embodies a suitable cylinder 4 supported by the arm 3 of its respective unit, a piston 5 workable therein, and a non-rotatable'ram, or rod 6 depending from the piston and directed through the bottom of the cylinder to a suitable point therebelow.

The plunger is provided at its lower end with a suitable removable head, designated 12 and held in position on the lower end of the plunger or 5 within the cylinder is moved upwardly by the action of a suitable spring 1. The piston is responsive to fluid pressure for moving the ram associated therewith downwardly, and the piston of a suitable conduit 9 and the fluid pressure to ,the cylinder is. controlled by a suitabletwoiway valve l0.

Y When the valve handle ll of the valve is in one'position, the valve is closed to the passage ,ram by suitable fastening means 6'. The piston toward and away from each other.

duit l2, and when the valve handle of the valve is moved to its outer position the fluid pressure within the cylinder is exhausted, as at l3, which allows the piston within the cylinder to be raised by the action of the spring.

The means for supporting a lasted shoe on the machine will now be described.

A pair of suitable guides [4 are ijxed on the base I of the machine. A suitable lasted shoe support I5 is mounted for sliding movement on the base I between the guides I4 so that the support can be moved toward and away from the upright 2. When operatively positioned, the support I 5 is disposed below the plunger 6, as shown in Figs. 1 and 2. The support I5 is provided with a suitable swivelly mounted head [6 having a recess I! open at its forward end. The lower surface of the head I6 is suitably concaved, or longitudinally and transversely curved, as at l8, and the upper surface or" the support I5 is suitably conve'xed, or longitudinally and transversely curved, as at IS. The support is provided with a suitable opening 20. The head 16 is held on the support [5 by means of a depending pin 2| insertable through the opening 20. A suitable spring 22 encircles the pin and is interposed be-' tween the apertured top of the support [5 and a stop 23 carried by the pin. The recess I? of the head I6 is adapted to receive a part 24 of a shoe last '25 to be supported by the recessed he'a'd l6.

A shoe, designated generally as F, to be heeled, is supported by the last 25, as clearly illustrated. The heel seat of the shoe F is designated 1.

The gauge mechanism for locating the shoe counter and the heel seat of a shoe in proper position relative to the plunger, Orr-am of the machine, includes a suitable supporting member 26 adapted to be mounted for vertical movement between suitable guides 21 on the upright 2 of said machine unit. Mounted for horizontal adjustment on the support 26 and locked thereon in any of various adjusted positions by suitable locking means 28, is a suitable plate 29, having a slot 30.

A screw threaded end 3| of the locking means 28, Passes through the plate 'slot 30 and is 're- 'c'eivable in a screw threaded opening 32 in the support 26. The forward'end'of'the plate is provided with a suitable head 33,as shown in Fig.

6, and the'head is provided with a suitably shaped transverse recess '34. Associated with the head '33 are a pair of suitablegauge arms 35, the rear endsfof which are provided with suitable heads 36 shaped to conform to the plate head recess 34,

amend heads are so shaped as to prevent movement of the gaugearm heads in any direction but The gauge arms are moved toward and away from each other by means of a stem 31 having right and left'handed screw threads 38 and 39. The screw reduced in diameter, as at 42, and this non-screw threaded section'of the screw stem 3'l is held in a suitable bearing 43 'to prevent longitudinal movement of the screw stem 31 relative to'the gauge arm heads 33.

The gauge arms 35 are shaped to conform to the counter of a shoe'a'nd the inner sidefaces thereof are beveled as at 44 between thei'nner "endof the heads 36. The gauge arms are'adapted 2,028,382 of fluid pressure therethrough from a feed conto straddle the shoe counter below the heel seat of the shoe. The shoe counter is designated f in Fig. 6. When the screw stem is turned clockwise, the gauge arms 35 are moved away from each other and when turned anticlockwise, the gauge arms are moved toward each other. Thus, the gauge device can be adjusted to accommodate any size of shoe counter.

The gauge device serves to locate the desired position of the heel seat of the shoe relative to the plunger of the machine, and to prevent bulging or spreading of the shoe counter when pressure is applied to the heel seat I, as will be fully described hereinafter. The machine includes a suitable foot pedal 45, pivoted as at 46, and the foot pedal 45 is connected with the guided support 26 through the medium of a suitable connection 41, which connection is encircled by means of suitable coiled expansion spring 48 disposed below the guided support 26 and the base I The spring 48 normally holds thegauge mechanism in its uppermost position relative to the lasted shoe support, as shown in dotted lines in Figs. 4 and 6.

Plate carrying tool and operation of machine.

The machine is adapted to apply andsecure a heel seat plate H shown in sectional view in Fig. 3, to the heel seat of the lasted-shoe and; to finally shape or form the heel seat for thefapplication of a heel thereto. The means for performing this operation comprises the plateholder b removably secured to the lower end of the plunger 6 of, the machine. The plate holder b is provided with a suitable concaved lower face 54 and a plane surface '55 .ior finally shaping, -or forming the heel seats simultaneously with the applying of the heel plate to the heel seat of the shoe. The holder 2), as shown in Figs. 2 and 3, is provided with a pair of suitable transverse slotted recesses designated '56 and '5? into which is inserted the

apertured ears

58 and 56, respectively, of the heel seatiplate H and which ears arefrictionally, but removably held in said slotted recesses 55 and'fil by two balls 86 and El, respectively against which a spring 62 exerts endpressure, as shown in Fig. 3.

moving downwardly, from dotted line position in Fig. 4, the'gauge arms 35, intocontact with the counter f ofthe lasted shoe'to properly locate-the position of the heel seat portionIf of the shoe relative to the .heel plate holder -b. The operator then opens the Valve it by moving-lever H to dotted line position, causing fluid pressure to enter the cylinder 4, thereby actuating the piston therein and forcing the plunger 6 associated .therewith and the plate holder b downwardly to cause the prOn'g'sfiS of the heel seat plate H'topenetrate the heel seat material of the s'hoe po'sitioned therebelow, which prongs. are clinched by .coming'into'contact with the heel surface of the last upon which" the shoe F'is lasted. After the 7 plate applyingand securing-operation, the operator closes theval've l0, and the fluid pressure within the cylinder-is exhausted'due to. the spring within the cylindermovin'g' the plungerand'plate holder to its uppermosti'position,minustheheel seat plate H. lifter the'heel seat plate seating dent that the several successive steps or operaoperation, the operator releases foot pedal, and the gauge arms are automatically elevated to their uppermost position, as shown in dotted lines in Fig. 4. The lasted shoe with the heel seat plate H applied thereto is then removed from the head It of support 15.

From the foregoing description, it will be evitions of inserting fasteners and forming the heel area of a sole are carried out on a single machine and the shoe is then ready to have a heel rigidly attached to the heel seat area thereof.

From the foregoing description, it is also ap-- parent that I permanently fasten the heel attaching plate to the prepared heel seat of the sole under suitable pressure. and finally form the heel seat area of the sole for the mounting of a heel thereto, as well as holding the counter of the shoe from spreading while pressure is being applied for attaching the plate to the heel seat of the 7 shoe.

While I have shown and described, in detail, one form of machine, it will be observed that the shoe gauging device associated therewith for' able retaining means on the holder for holding the plate against the holder and means for actuating the ram to force the prongs of the plate through the heel seat material of the shoe for locking the plate against displacement on the heel seat of the shoe.

2. In a machine of the class described, in combination, a stand, a ram, a lasted shoe support mounted on the stand, a gauge device mounted on the stand and capable of vertical movement and horizontal adjustment and adapted to be brought into contact with the counter of a lasted shoe for locating and holding the heel seat of the shoe in a desired position below the ram, a heel seat 1 shaping surface on the ram, means associated with the ram totemporarily hold a pronged heel seat platehaving apertured ears by the earswhen applied to the heel seat shaping surface on the.

3. In combination witha ram movable above a lasted shoe support, a holder on said ram, said holder having a recessed seat for finally shaping the heel seat of the shoe when brought into contact therewith, said holder having a pair of transverse slotted recesses open to the heel seat shaping surface thereof, a ball movable into eachrecess through the adjacent side walls of the slotted recesses and a spring disposed betweenthe balls for exerting end pressure against the balls which are adapted to engage the apertured ears of a pronged heel seat plate when positioned on the heel seat shaping surface of the holder for holding the plate thereon in the downward travel of the ram for applying and securing the plate to the heel seat of a lasted shoe on said support and releasing the ears of the plate in the upward travel of the ram due to the pronged plate being secured to the heel seat of a shoe.

4. A shoe heel seat plate holdercomprising a body adapted to be removably fixed to a ram, a heel seat shaping surface formed on the bottom face of said body, said body having a plurality of suitable transverse slotted plate ear receiving recesses and yieldable means entering each recess for removably holding a heel seat plate on the heel seat shaping surface when applied thereto.

5. In a machine of the class described, a ram,

a holder on the ram having slots to receive apertured ears on a pronged heel attaching plate, yieldable retaining means in the holder for engagement with the apertured ears adjacent the slots for holding the plate on the holder, said ram adapted to be moved to force the plate prongs under pressurethrough the heel seat material of a shoe on a last mounted ona work support and to clinch the prongs against the last.

6. In a machine of the class described, a ram, a base plate below the ram, a shoe on a last mounted on a work support which is slidably mounted on the base plate below the ram, means carried by the ram supporting a pronged heel attaching plate provided with apertured ears, said ram adapted for movement to attach the heel attaching plate to the heel seat of the shoe and means for holding the counter of the shoe against spreading while attaching the plate to the heel seat of the shoe.

7. In a machine-of the class described, a ram,

7 a removable holder on said ram having slots for receiving apertured ears of a pronged heel attaching plate, yieldable retaining means in the holder adjacent the slots therein for holding the plate against displacement on the holder, said ram adapted to be moved downwardly to force the plate prongs under pressure through the heel I seat material of a shoe on a last mounted upon a work support and to clinch the prongs against the last, and means adjacent the counter of the shoe for holding the counter against spreading while pressure is applied to the pronged plate in attaching it to the heel seat of the shoe.

FRANK B. DOPP.